Support getting and deleting token for Instance ID.

google_apis/gcm/engine/gcm_registration_request_handler.h

Index: google_apis/gcm/engine/gcm_registration_request_handler.h
diff --git a/google_apis/gcm/engine/gcm_registration_request_handler.h b/google_apis/gcm/engine/gcm_registration_request_handler.h
new file mode 100644
index 0000000000000000000000000000000000000000..26ba49d87dba0c87b520c3c863f1cbdae8c7b236
--- /dev/null
+++ b/google_apis/gcm/engine/gcm_registration_request_handler.h
@@ -0,0 +1,30 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef GOOGLE_APIS_GCM_ENGINE_GCM_REGISTRATION_REQUEST_HANDLER_H_
+#define GOOGLE_APIS_GCM_ENGINE_GCM_REGISTRATION_REQUEST_HANDLER_H_
+
+#include "google_apis/gcm/engine/registration_request.h"
+
+namespace gcm {
+
+// Used to obtain the registration ID for applications that want to use GCM.
+class GCM_EXPORT GCMRegistrationRequestHandler :
+    public RegistrationRequest::CustomRequestHandler {
+ public:
+  GCMRegistrationRequestHandler(const std::string& senders);
+  ~GCMRegistrationRequestHandler() override;
+
+  // RegistrationRequest::RequestHandler overrides:
+  void BuildRequestBody(std::string* body) override;
+
+ private:
+  std::string senders_;
+
+  DISALLOW_COPY_AND_ASSIGN(GCMRegistrationRequestHandler);
+};
+
+}  // namespace gcm
+
+#endif  // GOOGLE_APIS_GCM_ENGINE_GCM_REGISTRATION_REQUEST_HANDLER_H_